The monocrystalline silicon solar module of GYS are composed of solar cells with the average conversion efficiency above 15%, EVA sheet, solar glass and Tedlar (TPT) back sheet compounded from fluoric-plastic and dacron. The module adopts reliable welding technology and high-vacuum heating lamination process and is equipped with anticorrosion-treated aluminum alloy frame and watertight terminal box, According with IEC61215 and the II grade standard electrically. As a result, it takes on a rational structure, has an ultraviolet aging resistance. The multicrystalline silicon solar module of GYS are composed of solar cells with the average conversion efficiency above 14%, EVA sheet, solar glass and Tedlar (TPT) back sheet compounded from fluoric-plastic and dacron. The module adopts reliable welding technology and high-vacuum heating lamination process and is equipped with anticorrosion-treated aluminum alloy frame and watertight terminal box, According with IEC61215 and the II grade standard electrically. As a result, it takes on a rational structure, has an ultraviolet aging resistance.